Dumping-wagon.



T. WRIGHT.

DUMPING WAGON.

APPLICATION FILED J NE 20,1908.

Patented May 4,1909.

3 SHEETS-SHEET 1.

WITNESSES INKENTOH 1720/72 aw ihk 'yfi Z ATTORNEYS Ti WRIGHT.

DUMPING WAGON. APPLICATION FILED JUNE 20,1908.

Patented May 4, 1909.

3 SHEETS-SHEET 2.

WITNESSES A TTOHNEYS T. WRIGHT.

DUMPING WAGON. 7 APPLICATION FILED JUNE20, 1908.

Patented May 4, 1909.

3 SHEETS-SHEET 3.

INVENTOI? A TTOHNE VS UNITED STATES PATENT QFFIEOE.

THOMAS WRIGHT, OF JERSEY CITY, NEW JERSEY.

DUMPING-WAGON.

To all whom it may concern:

Be it known that'l, THoMAs irVnIoHT, a citizen of the United States, anda resident of Jersey Cityfln the county of Hudson and State of NewJersey, have invented. a new and Improved Dum ing-Vlagon, of which thefollowing is a fu l, clear, and exact description. v

This invention relates to dumping wagons and carts such as used by coaldealers for delivering coal.

The invention concerns itself especially with that type of wagon or cartin' which the body is raised above the truck in order to (luin thecontents. In many constructions whic are used for this purpose, inelevating the body as suggested, the position of the body may changesufficiently so as to move the center of gravity of the load fromaposition of equilibrium. In this way the wagon or cart may be upset.

The object of this invention is to reduce a simple construction in whichthe ody of the wagon or cart may be raised and inclined,

but in which the center of gravity of the body and its load will remainin substantially the same plane as when the body is in its normalposition on the truck.

The invention consists in the construction and combination of parts tobe more fully described hereinafter and particularly set forth in theclaims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a longitudinal section throu h the upper portion of thetruck and body 0 a wagon or cart constructed according to my invention,and showing the body in itsnormal depressed position; Fig. 2 is a viewsimilar to Fig. 1, but showing the body partly raised, the up er portionof the body eing broken away; ig.-3 is also a longitudinal verticalsection showing thebody in a more elevated position, and in a secondstage of the raising operation; Fig. 4 is a cross section taken near thefront ofthe cart or body on the line ll of Fig. 2;.Fig. 5 is a plan or"the middle portion of the truck and illustrating the elevatingmechanism, certam parts being broken away and shown in cross section,this view may be considered as a section onthe line 5,-5 of 3; Fig. 6

Specification of Letters Patent. Application filed iTune 2D, 1908.Sen-m1 No. 489,491.

is a longitudinal section showing a modified form of construction; andFig. 7 is a verticalsection on the line 7-7 of Fig.] and showing theconstruction of the wagon at the rear.

Referring more particularly to theparts, and especially to Figs. 1 to 3,1 represents the body of-the wagon or cart, which is supported upon atruck 2, said truck bein composed of side bars 3 connected by cross arsor. for-, wardbolsters 4 and a rear bolster 5. Near its middle the truckconstruction comprises a transverse beam 6, and net forward of thisbeam, '1 provide a main shaft 7, as illustrated in Fig. 5, said shaftbeing supported in suitable bearin s 8 attached to the under side of theside are or stringers 3. shaft 7 is provided at one end with a rigidgear wheel 9 which is driven through bak- Patented May 4,1909.

This

gearing 10 from a sriuare-headed spindle 11,

to which a removab crank may be applied when desired. Aha suitable pointnear this back gearing, a brake lever 12 is-provided, to which there isattached a brake band or strap 13 which passes ar'ound'a brake drum 14formed on the spindle 11, as indicated in Fig. 5. In addition to this,a' awl 15 is provi ed'which engages one of t .e gearslfi of the backgearing, so as to prevent the backward rotation of the gearing whichwill be produced by the descent of the body 1. This pawl is pivoted onthe lever 12 so thatwhen the lever 12 is moved toward the left to applythe friction brake, the aw] will be disconnected; in this way the odymay be allowed to descend gradually to its normal position.

As indicated most clearly in Fig. 3, on the inner faces of the sidestringers 3, ll provide guide rails, 17 which are formed of an is iron,the flanges 18 of which project inwar ly so as to form a track forrollers 19, which are carried upon a transverse roller shaft 20. Nearthe ends of this shaft 20, main legs 21 are attached. As shown in Fig.5, these legs are bifurcated, that is, they are formed of oppositelydisposed flat bars 22, the ends of which come together at the point ofconnection with the shaft 20. As indicated in Fig. l, the bottom 230ithe wagon body is formed near its side ed es with channels 24, and inthe bottoms of these channels, wear strips 25, of steel or similarmaterial, are placed. The up er ends of these main legs 21 are providhdwith rollers 26 which roll in. these channels as will be readilyunderstood. On

the upper side of the beam 6, brackets 27 are provided, which formpivotal. supports for a pair of forward legs 28. These legs 28 extendforwardly under the body, cross the main le s, and their upper ends areprovided with rol ers 29 which also roll along the channels 24. Links 30connect these forward legs with the upper extremities of the main legs21 by means of slots 3O which receive pins 30 on the legs. On the shaft7, a chain 31 is coiled, there bein a loop formed at the middle of thechain a out a bolt 32. The chain on one side of this bolt is coiled in aright-hand direction, while on the other side it is coiled in aleft-hand direction. From points near the ends of the shaft 7, the chainextends forwardly in runs 33 which form loops around the chain wheels orpulleys 34 attached to the shaft 20. From these pulleys 34, the chainextends rearwardly and is attached to anchor bolts 35 mounted non therearward side of the beam, as indicated in Fig. 3. in order to preventthe coils of the chain from working too far toward the ends of the shaft7, I provide guards 36 in the form of strips of metal attached to thebeam 6. These stri s form loops around the forward side of tlfe shaft 7so as to prevent the chain working out as described.

The middle arts of the main legs 21 are provided with ongitudinal slots37, and be tween the bars 22 which form these legs 21, links 38 arereceived. These links are provided with transverse bolts 39 which run inthe slots, as shown. These links 38 extend rearwardly and their rearextremities are attached to hell crank levers 40, which are looselymounted near the ends of a transverse lever shaft 41, the ends of whichshaft are mounted in the rear ends of the side stringers 3. The lowerarms 42 of these bell crank levers are connected by links 43 with thesides of guide stri s 44 by means of removable bolts 53. 'T ese guidestrips form the inner sides of the channels 24. At the rear end of thebody 1, downwardly projecting guard arms 47 are provided, which in clineforwardly when the body is in its horizontal position, as shown inFig. 1. These guards project down just before the shaft 41,

as shown, and are dis osed between the bell crank levers 40 and t 1eside strin ers of the frame or truck. The lower end 0 the guard arms 47are connected by a horizontal bar or brace 49. The lower arms 42 of thebell crank levers are rovided with a plurality of openings 50 whicenable the rear legs 43 to be attached in different adjusted positionsby means of a removable bolt 51. Similarly, the strips 44 are providedwith a plurality of o emngs 52, in any one of which the up er en s ofthe rear legs 43 may be attac ed by removable bolts 53. In a similarmanner the forward ends of the links 38 are provided with a plurality ofopenings 54 which enable the pins 39 to be placed in any desiredadjusted position. On the main legs 21 near their middle oints,transverse catch pins 21' are provided and in the lower edges of theforward legs 28 removable studs 28 are placed; as the body is beingelevated these studs are adapted to strike the pins 21 with an effectwhich will appear in the description of the mode of o erationhereinbelow. In order to make t e studs adjustable on the legs 28, Iprovide a plurality of openings 28 in any one of which the stud may besecured.

1 Referrin to Fig. 3, attention is called to the form of the guide rails17. The forward ends of the ide rails are depressed so as to form curvediests or seats 55 which receive the rollers 19 when the body is in itsdepressed position. From these seats the rails incline upwardly in arearward direction, the rear en s of the rails being formed withstraight extensions 56, which are less inclined than the body of therails, as shown, and

meet the body of the rails at the points 57.

The mode of operation of the wagon in raising the body, will now bedescribed: By

means of the removable crank, the shaft 7 1S rotated by the back gearing10 so as to shorten the loops of the chain which pass aroundthe pulleys34. This will rotate the shaft 20 in the direction of the arrow shown inFig. 3, so that the rollers 19 will roll rearwardly on the rails 17. Inthis way the main legs will thrust upwardly against the under side ofthe body and will exert a tension in the links 30 which will raise theforward legs 28. In this way the body-will tip upwardly at its forwardend, but the rear end will remain substantially stationary. Thismovement is virtually a rotation about the shaft 41 as an axis. \Vhenthe main legs 21 have advanced sufficiently, the pins 21 a will strikethe edges of the forward legs 28; The maih legs will then elevate theforward legs by a direct thrust against them, and after a slight u wardrotation the studs 28 will strike t e pins and arrest any furthersliding movement. The legs 21 will then move as though they were pivotedto the legs 28 and a scissor movement then follows that is, as therollers 19 advance on the guide rails the upper ends of the legs 21 and28 will approach each other and the angle between the legs willdecrease. The slots 3() permit of this scissor move-' ment; the pins 30slide in the slots and the parts assume the relation shown in dottedlines in Fig. 3. It will be seen that in this way the body is given agreat inclination. During this movement the ends of the slots 37 willstrike the pins 39. When this Joint is reached, a thrust is exerted inthe lin s or bars 38, and this thrust rotates the bell crank levers 40in a ri ht-hand direction. This rotation will pro uce a thrust in therear lvgs' 43 which will commence to raise the rear end seams of thebody. Evidently by adjustment, that is, by changing the position oli thepins 39 in the openings 54, the moment at which the legs 21 will beginto move the hell crank levers may he made earlier or later. From thisarrangement it will be noted that the body is brought into an elevatedposition with out moving any substantial amount toward the rear; in thisway the center of gravity of the load is maintained forward of the rearaxle, hence there is no tendency of the load to overturn the truck. Theextensions 56 of the rails 17 are less inclined, so as to reduce thespeed of lift-in at the front of the body to corresporutl witi the speedof raising the rear end. After the body is brought to the inclinedposition shown in Fig. 3, and sulficiently raised, the tail-board of thebody is removed so as to allow the contents of the body to be dumped.

instead of employing the slots 30 in the links 3G, as shown in Figs. 1to 3, it may adopt the modified construction shown in Fi 6. in thisform, the main legs 58 are biiurcated as before, so as to receive theforward legs 59, which are pivoted at 61. The slots 36 are omitted andthe links 67 are simply pivoted to the legs 59, as shown. The bars orlinks e2 which extend rearwardly to attach to the bell crank levers, arerovided with a plurality of openings 63 w ich enable them to be attachedto the main legs 58 in dilierent positions by means of removable bolts64. The links 67 are pivoted at '68 to thernain legs 58. In this formthe pins ii a and the studs ZS are omitted so that no scissor-likemovement takes place; the relative movement between the legs 58 and 59is unrestricted and the main legssiniply pull the torward legs up intoposition through the links 67. This construction does not give as greata dumping angle as in the referred form. Attention is called to the factthat this mode of operation of the preferred form can be had at any timedesired by simply removing the pins 2i or the studs 28 it will oeunderstood that the slots 37 in I connection with the pins 39,constitute a lost motion device for enabling the elevation of theforward end of the body to progress considerably before the elevation ofthe rear end begins. The "guards 4-? lie substantially against theforward side of the shaft 41 and thus hold the body against shiftingunduly toward. the rear of the wagon.

it will be observed that the links 30 have a very useful function at theheginningof the elevating movement, for they hold back the upper ends ofthe main legs and guide them 11 'wardly so that they come quickly to al'nghly-inclined position. In this way, they assist in lnjingim thewagon body rapidly to its dumping ang e.

Having thus described my invention, l

claim as new and desire to secure by Letters Patent:

i. In a dumping carter wagon, in. combination, a truck, a body mountedthereupon, a transverse shaft on said truck-at the rear thereof,rearwardly'in-clined guard arms rigidly attached to said body andextending downwardly therefrom, saidguard armsbeing disposed near saidshaft, means for elevating the fonvard end of the said body to bringsaid guard arms into a substantially vertical position, and means forelevating the rear end of said body.

2. In a dumping cart or wagon, in combination, a truck, a body, mainlegs supported on said truck, forward legs crossing said main legs andpivotally mounted on said truck, the upper ends of said legs beingarranged to run freely on the under side of said body, means foradvancing said main legs at their lower ends and giving the same asliding movement across said forward legs, means for limiting thesliding movement of said main legs on said forward legs at theircrossing point whereby a substantially pivotal connection is formedtherebetween, and means for elevating the rear end of said body actuatedfrom said main legs.

3. In a dumping cart or wagon, in combination, a body, a truck, mainlegs supported thereupon at their lower ends and sliding under the saidbody attheir upper ends,

means for advancing said main legs, forward legs pivo'tally mounted onsaid truck and adapted to slide across said main legs and sliding attheir upper ends on the under side of said body, means for limiting the.movement of said main legs with respect to said forward legs andproducing a scissor movement therebetween, links connecting theupperends of said main legs with said forward legs and having slotspermitting said scissor movement, elevating mechanism at the rear ofsaid body, and means for actuatthe same from said main legs.

e. in a dumpin Y cart or wagon, in eoinzination, a truck, a ody, guiderails mounted on said truck, main. legs havingrollers run-- ning onsaid. guide rails and adapted to su"ppert said body at their free ends,means for advancing said main legafmward legs piv' otally mounted onsaid truck supporting said body at their free ends and crossing saidmain legs, links connecting the upper ends of said main legs with saidforward legs,

mechanism for raising the rear end of said body, and a lost. motion.device conu'iectiru said main legs with said last mechanism and adaptedto elevate the rear end of said body after the forward end thereof hasbeen elevated.

5. In a dumping cart or wagon, in combination, a truck, a body, guiderails on said truck, main legs having rollers running on ,legs with saidforwar lower part thereof, mechanism for raising the rear end; of saidbody, and bars connected with said mechanismfor actuating the same andhaving p ns running in said slots, said slots affording means forpermitting the ele )ody bevation of the forward en of said fore theelevation of the rear end thereof.

6. In a dumping cart or wagon, in combination, a body, a truck havingguide rails,

' main legs having rollers running on said guide rails, forward legspivotallymounted on said truck and crossing said main legs, adjustablemeans for limiting the movement of said main legs "on said forward legsand producing a scissor movement tliereabout, and slotted linksconnecting the up er ends of said main legs with said forwar legs.

7. In a dumping cart or wagon, in combination, a truck, a body'mountedthereupon, a transverse shaft at the rear of said truck, rearwardlyinclined guard arms rigidly attached to said body and near said shaft,bell crank levers mounted on said shaft and connected with the rear ofsaid body to elevate the same, mechanism disposed for- .wardly on saidbody for elevating the for ward end thereof, and means for connectingsaid last mechanism with said bell crank levers, operating after theforward end of said body has become elevated.

8. In a dumping cart or wagon, incombination, a truck, a body supportedthereupon and having downwardly inclined rigid guard arms at the rearend thereof, a member mounted on said truck and cooperating with saidguard arms to guide saidbody, bell crank levers rotatably mounted onsaid member, links connectin said ball crank levers to the under side ofsaid body at the rear for elevating the same, mechanism for raising theforward part of said body, and a lost motion devic connectin said lastmechanism with said bell crankdevers.

9. In a dumpin cart or wagon, in combination, a truck, a ody mountedthereupon, guide rails mounted on said truck, main legs aving rollersrunning on said guide rails, mechanism connected with said main legs forelevating and supporting said body in an inclined position, mechanismfor elevating therearend of said body, and a bar connecting said lastmechanism with said main legs a lost motion connection with said mainegs, whereby said rear elevating and havin mechanism operates after thebody has been inclined by said main legs.

10 In a dum ing cart or wagon, in combination, a truclr, a bodysupported thereof said body.

upon,-guide rails on said truck, main legs having rollers running onsaid rails, forward legs pivotally mountedon said truck, linksconnecting said main legs with said forward legs, said egs being adaptedto support said body on the upperends thereof, means for advancing saidrollers along said guide rails, mechanism for elevating the rear endofsaid body, and bars connecting with said last mechanism and having a pinand slot connection with said main legs. v

11. In a dumping cart or wagon, in combination, a truck, a body mountedthereupon, guide rails mounted on said truck, forward legs pivotallymounted on said truck and engagin the under side of said body at theirfree en s, links connected with said forward legs, main legs connectedwith said links and thrusting at their upper ends against the under side.of said body, rollers supporting said main legs and runnin on sairails, means for advancing said ro lers along said guide rails, meansfor guiding the rear end of said body in a substantially verticaldirection after it has been inclined by said legs, elevating mechanismat the rear end of said body, and a lost motion connection between saidlast mechanism and said main legs, (permittin the elevation of theforward en of said ody before the eleva tion of the rear end thereof.

12. In a dumping cart or wagon, in combination, a truck, a bodythereabove, guide rails attached to said truck, main legs havin' rollersat their lower ends running on sai guide rails, forward legs pivotallymounted on said truck, and links connecting said main legs with saidforward legs near the uppenparts thereof, said main legs and saidforward legs being arranged to run freely on the bottom of said truckand being disposed toward the forward end of said trpck.

13. In a dum ing cart or wagon, in com; bination, a true a bodythereabove, guide rails mounted on said truck, main legs having rollerson said guide rails, forward legs pivotally mounted-on said truck, linksconnecting said main legs with said forward legs, the u per ends of saidlegs being arranged to s ide freely on the bottom of said body, meansfor advancing said main-legs so that said rollers move along said iderails and said main legs slide across said forward legs, means forlimiting the-sliding movement of said main legs across said forwardlegs. to produce a pivotal action therebetween, and means for guiding.the rear-end 14. In a dumping cart or wagon, in comeamsm 6 beingarranged to run freely on the under In testimony whereof I have signedmy side of said bod means for limiting. the name to this specificationinthe presence of 10 movement of sai main legs on saidforward twosubscribing Witnesses.

legs to produce a scissor action therebetween,

mechanism at the rear of said body for ele- THOMAS WRIGHT vating thesame, and. means for connnecting Witnesses: said mechanism with saidmain legs fer F. D. AMMEN,

actuating said mechanism. JOHN P. DAVIS."

